This comment seems very related to the specific content you are looking for. Lemmy is a good place for tech information but that’s about it. Cooking, home improvement, personal finance, DIY, crafting etc don’t have homes on here with many active users, and especially not the amount of knowledgeable users that were on Reddit.
This all started because of an API change, so it would make sense that the predominant amount of users who migrated are more tech savvy.